Hoist.



E. Y. MOORE.

. HOIST.

APPLICATION rum) NOV.22,1809.

1,035,030. Patented Aug. 6, 1912.

4 SHBETS-S HEET 1.

E. Y. MOORE.

110m. APPLICATION FILED NOV.22, 1909.

Patented Au 6, 191%.

4 SHEETS-BHEET 3.

fnumzzar.

5. Y. MOORE.

HOIST.

APPLIOATION FILED NOV. 22,1009.

1,035,030. Patented Au .6,1912.

I 4 sums-51mm 4.

.2 Iran srmrnsrafrisrn FFICE.

EDWARD Y. MOORE, OF CLEVELAND, OHIO.

HOIST.

Specification oi. Letters Patent.

Patented Aug. 6, 1912.

To all whom it may concern: 1

Be it known that I, EDWARD -Y. Moons, a, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvementin Hoists, of which a the followin is a full, clear, and exact description, re erence being had to the accompanying drawingm.

The object ofthis invention is to provide an eiiicient and powerful hoist adapted to be arranged in very compactform. To this end I provide, in the preferred form, a pair of lift wheels having gears connected with them, a second pair .of gears adapted respectively to mesh therewith, and eccentrics driven from a common .point for gyrating such second pair of gears.

The invention comprises'broadly a hoist. so constructed, and'various other features contributing to the eilieiency thereof, as hereinafter describedand claimed.

In the drawings-Figure 1 'is a side elevation of my hoist complete, showing the raising chains and lift hook; Fig. 2 is a sectional side elevation of the hoisting mechanism Without the chains'or lift hook; Fig.

3' is a side elevation of one of the eccentric shafts; Fig. 4 is an elevation of the hoisting mechanism at right. angles to F ig. 2, and,

with the corresponding hand-wheel and outer member of the casing removed; Fig. 5 is a vertical section through the mechanism as indicated by the line 5-.5 of Fig. 2, looking tor 'a rd the center of the hoisting; Fig. 6 is a vertical section through substantially the center of the hoist in a plane parallel with 'Figs. 4- and 5; and Fig. 7 is a plan of the supporting, yoke and lift book shown in elevation in Fig. 1. Fig. 8 is a section through one of the roller bearings.

As shown in the drawing, the hoist frame consists of four parts, namely, the two ring like members 10 and 11, abutting, each other at the central plane of the hoist, and the two outer saucer-shaped members 12 and 13, abutting the outer edges of the members '10 and 11. These various members are secured together by suitable bolts, which may be through bolts for all members, as shown at 15 in Fig. l, or individual bolts or capscrews connecting to abutting members as indicated at 16 and 17. Each of thememhers v1O and llhasatransverseinternaldiaphragm or web 18 which furnishes a bearthe hoist at the axis of the various frame members and is jonrnaled, as shown, in graphite bronze bushings 26 and 97 which 65 are mounted within the bore of stationary sleeves 28, of which there are two, the respective sleeves being mounted at their-outer ends in the frame members 12 and 13 re-- spectively, and at their inner ends 111 bosses to 19 formed on the diaphragms 18 of the frame members 10 and 11.

Journaled around the stationary sleeves 28 are the lift wheels, of which one is shown at- 30 in l igs. 2 and 4-. Between the sleeve 28-and the lift wheel isshown a graphite bronze sleeve 31 which is fixed in the lift wheel and provides a hood bearing surface on the sleeve 28. Each lift wheel has the usual chain receiving pockets 32 and is formed on its inner side into a'disk 33 which carries near its periphery a flange 34 ere tending toward the center of'the hoist. This flange 3-1 has internal gear teeth which preferably a re formed in a separate member 35 rigidly held in place'within the flange. Fig. 5 shows pins insuring rigidity betwe n the gear 3:") and the flange.

Within each of the internal gears an external gear 40 having a less number of teeth than the internal gear and adapted to mesh with it at any point. The external gen rs l0 are, as shown, rings having an opcr: interior and having three inwardly extending bosses ll. .lournaled within the two diaphragnis 18 at three points are the shafts 45. "The inner ends of these shafts 46 are turned cccentrically and occupy openings 47 in. the bosses :11, there being preferably, roller bearings between the eccentrics 46 and the bosses; 'At their hearings in the diaphragnis 18 the portions 49 of the shafts preferably also occupy roller bearings 50 which are within bosses 51 of "the (lia phragms. Each of these hearings is prcf- IM S erably of the construction shown in Fig. 8, and com prises rollers (12 separated by spacers '43 held by and rings 44; ()n the central portion 53 of each shaft 1-5 rigidly secured a spur gear 55. The three spur shown, mesh Willi the centrallylo- 2:: led 8PM? ninion $6 which rigid on the llllYlilig sh:

"1' such a portion ence belrween the I 1 external and inter-- "l (.l i .v uncle number of teeth Accoi:clnngly such vee the internal gear a. very slow a i u r inich ca. .865 the Wheels to raise she ell-e121 at a 1 H orresponclingly reduced sceeci. This q'ieaib reduction in ilie speed, by

eon ill Aim ml g; ining as Well as the fmrfner reduclion by the spin" gearing, en-

very p werful hoist; to be compare- .ly small.

The construction of the parts clescribed is such that there is a yecy big 1 efiiciency in mi. the loerl and ccncomiiently :1 l r 0f the loecl cc run down when the =1 ng; teoven'ieni. ceases. To preventsuch "4} ;'L, 'ni11g down, ll proyicle a brake between the 1: 11d Wheel and the main. shaft which is timing the raising operation, but is efi U tc prevent tlie'i-evcrse rotation.

he ln'zilcc which 1 prefer to employ is that *ewn, cl scribe l {incl claimed in my Patent W116i will. lie hereinafter cnly briefly Tit eeinpirises a bellow eup-like igs" 1. ancl 2} jcnrnaleol around ,"ecazsn't to the inner side of having on its exteeth 6 with which. ccoperele can 'ecl by/ lie casing Gn the the cup e series of friction 1 9 0y; i, which are connected filler lie cup e'ncl the shaft, so time \fliflIS are "pressed toward each i fricizionelly locked lo the the absence of such pfessm'e The brand. Wheel has a cam Elie main elmili liy means of two 3133mm collars 6e elfis "rigi-i with the hancl with the shaft.

c ace-'5 one of lcecl ii is 'lk reecl inwei'dly b; l e, thus causing idly will; llie hand {wheel feetli 1 passing fi'eely seen the lifting of the main while backwards, by i'eescn of (hereon.- ie comil'emczcci by l'he e 'i'uhgzliei; iTOOlQlA," thereby point in which it may been raised. To lower the iced the hand wheel. is simply turned backwamlly faster l'lZIIl r'l'le main shaft turns under the influence oi the loacl, this mlvmicemcnt of the hand 'WllO-Ql on the shaft freeing the brake and allowing the shaft to turn Will-hi1! the slecionarily held. cup 60.

The drawing shows two hand Wheels 70 and '31, though it is obvious, of course, that one wheel alone may be employed, if desired. hen two are employed, one is rigid on the shaft and the other has the brake connection referred to. The hand \VllQGlF; pref rably have chain guards 72 providing sleeves adapted to surround the liand chains These guards are shown as carried by cenvtrel arms 75 jom'nalecl 0n the picojecting ends of lhe main shaft. The lifl: chain 7 extends (lOWll through openings 78 in the frame members 12 and 13. To insure the lift cllein being properly freed from the lift 7 wl1eels,'l provide the separators 79 which are bolted to bosses 80 on the inner faces of the frame members 12 and 13 aml stand between the two clepencling legs of the chain as it passes clown Over the Wheel.

It is obvious that the lift chains 77 mey be connected With the lower hook in any suitable manner, for example, they could be anchored at their lOW-31" Q11GlS to a ban in which the hock is switched, er the lift Wheels could lie of dillerenl diameter and a single chain pass off of apposite sides and carry the iii;- hcck in a night, thus melting; e cliil'eweniiel hoist; or the chains may run off of the same of the lift Wheels The latter is the form. shown. in the drawing, wherein the heel: is swiveled in a yoke 86, in which are jonrnelerl" clmin Wheels 87, which lie in bights in the two lift clminsc- These lift chains are sliewn as passing; up'werly irem the Wheels 87 over Wheels 88 carried y e, shackle 90 suppcflecl lay the .liois'l; frame,

the chains passing '(lOWZlWfiI'lllY from these wheels 88 lo the yoke 86, where their emls are anchored. This arrangement of chain and, pulleys 87 and 88 gives a very powerful action crippling the power clelivereol by e life Wheels co the lift chain.

file "pulleys 87 in the yoke 86 are pleceil diagonally as SllO-WH in Figs. 1 and 7 so that the ascending and escending chains do not interfere and the chain support on the hoist frame maybe as compact es'poesible. The pulleys ,,88 being oppositely diagonal, as sh own, ilic final leach of file chains may also be out cf the elem-being; anchorecl compare, lively near? the upper end of lhe suppcrtlng heel. L

Olwionsly, the wheels 88 couldme (lispensed with and the encls of the lift chains anchored to the sliackle less powerful anism were cl eiienl or the power may be 'fuietlier incr ased by a clcliticnai Wheels. The efimckle '90 may convenien ly be farmed with upwardly extending ears 91 adapted to lie adjacent to downwardly extending ears 92 on the various members of the hoist frame, these latter ears carrying a through bolt 94 on which the shackle is mounted.

Having thus described my invention, what I claim is 1. In a hoist, the combination, with a frame having two internal diaphragms and two external parts, of a pair of lift wheels rotatably mounted on opposite sides of the two diaphragms and each having an overhanging flange projecting toward the diaphragm and provided with internal gear teeth,a pair of external gears located rcspectively within such internal gear and between the body of the lift wheel and the corresponding dia hragm, eccentric shafts extending across tlie diaphragms and journaled therein and extending into the external gears and adapted to gyrate them, spur gears on said eccentric shafts between the dia phragms, a cent-rally located drive shaft, and a pinion thereon meshing with the spur gears.

2. In a hoist, a frame comprising two in termediate parts and two outside parts, the whole making a substantially closed structure, a hook swiveled between the two in termediate parts, a pair of diaphragms carried by the intermediate parts, two raising mechanisms between the diaphragms and the outer parts of the casing, there being openings through such outer parts for the passage of the lifting chain, supports for the raising mechanisms carried by the four arts of the frame independent y of the driving shaft, a driving shaft axial with the raising mechanisms, and driving mechanism connected therewith and mounted between the diaphra ns.

3. In a hoist, the combination of a pair of parallel frame plates, a pair of lift wheels suitably journaled 0n the outer sides of said frame plates and each having a portion overhanging toward the adjacent plate, such overhanging portion being providet l with internal t1 t v1th, a pair of external gears adapted to engage the internal teeth referred to, such external gears being located between the lift Wheels and frame plates, a shaft journaled in both frame plates, eccem tries on the outer ends of said shaft adapt.- ed to drive the two external gears. and means cnga ing said shaft between the frame plates for criving it.

4. In a hoist, the combination of a frame having two outer supporting portions and two intermediate supporting portions, a pair of alined tubes journaled each in one of the outer portions and adjacent the intermediate portion, a pair of lift wheels journaled on the respective tubes, each lift wheel having an internal gear adjacent to the correspontb ing inner support, a pair of external gears meshing with the internal gears respectively, shafts mounted in the two inner support.-; eccentrics on the ends of said shafts engaging the two external gears, pinions on said shafts between the intermediate supports, and a drive shaft occupying said tubes and having a pinion meshing with the pinions first-mentioned.

5. The combination, with a hoisting mechanism having a pair of lift wheels, of a device carried by the frame of said hoisting mechanism and having a pair of pa] leys at an acute angle to each other, a load supporting device having a pair of pulleys at an acute angle to each other, the more distant portions of one set of said pulleys being a distance apart corresponding to the closer portions of the other set of pulleys, and flexible lifting members passing across the lift wheels and the various pulleys.

t). The combination, with hoisting mechanism, of a frame therefor, a load support having obliquely placed pulleys, lift pulleys parallel with each other carried by the hoist frame, other pulleys obliquely placed and arried by the hoist frame intermediate of the lift pulleys, and flexible raising members passing beneath 'the obliquely placed pulleys tirst-mentioned and over the obliquely placed pulleys last-mentioned, said 'aising mechanism being connected with the hoisting mechanism.

7. The combination, with a hoistingmechanism, having a pair of parallel lift wheels, :1 device carried by the frame of said hoistin mechanism and having a pair of spools si'e by side but at an acute angle to each other, a load supporting block hav ing a pair of pulleys side by side but at an acute angle to each other, the more distant portions of the last-mentioned pulleys being a distance apart corresponding to that of the lift wheels and the closer portions being a distance apart corresponding to that of the obliquely placed pulleys tirstmentioned, and a supporting hook carried by said load sup porting block.

In testimony whereof, I hereunto allix my signature in the presence of two witnesses.

EDWARD Y. MOORE.

Witnesses:

V. MUMFORD Moons, THOMAS W. JOHNSON.

llO 

